Concentrated color developer composition used for silver halide photographic sensitized material and processing method by use thereof
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United States of America Patent
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May 31, 2005
Grant Date -
Apr 8, 2004
app pub date -
Jun 26, 2003
filing date -
Aug 9, 2002
priority date (Note) -
Expired
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Abstract
A one-part photographic developing concentrate comprising: (i) a paraphenylene diamine color developing agent; and (ii) a water-soluble organic solvent, wherein a molar ratio of sodium ion to potassium ion is at least 3, and a molar ratio of sulfate ion to carbonate ion is at least 0.25.
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